2
-------------------------
/ 2\ 2/3
3*\1 + 4*x /*atan (2*x)
$$\frac{2}{3 \cdot \left(4 x^{2} + 1\right) \operatorname{atan}^{\frac{2}{3}}{\left(2 x \right)}}$$
/ 1 \
-8*|--------- + 6*x|
\atan(2*x) /
--------------------------
2
/ 2\ 2/3
9*\1 + 4*x / *atan (2*x)
$$- \frac{8 \cdot \left(6 x + \frac{1}{\operatorname{atan}{\left(2 x \right)}}\right)}{9 \left(4 x^{2} + 1\right)^{2} \operatorname{atan}^{\frac{2}{3}}{\left(2 x \right)}}$$
/ 2 \
| 5 144*x 36*x |
16*|-9 + --------------------- + -------- + --------------------|
| / 2\ 2 2 / 2\ |
\ \1 + 4*x /*atan (2*x) 1 + 4*x \1 + 4*x /*atan(2*x)/
-----------------------------------------------------------------
2
/ 2\ 2/3
27*\1 + 4*x / *atan (2*x)
$$\frac{16 \cdot \left(\frac{144 x^{2}}{4 x^{2} + 1} - 9 + \frac{36 x}{\left(4 x^{2} + 1\right) \operatorname{atan}{\left(2 x \right)}} + \frac{5}{\left(4 x^{2} + 1\right) \operatorname{atan}^{2}{\left(2 x \right)}}\right)}{27 \left(4 x^{2} + 1\right)^{2} \operatorname{atan}^{\frac{2}{3}}{\left(2 x \right)}}$$